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Finding the Fourth Proportional to 273,891.80, 410,805.30 and 74,199.80

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Solution

The fourth proportional to 273,891.80, 410,805.30 and 74,199.80 is: 111,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,891.80 : 410,805.30 = 74,199.80 : x
  2. Step 2: Convert to fraction form
    273,891.80/410,805.30 = 74,199.80/x
  3. Step 3: Cross multiply
    273,891.80x = 410,805.30 × 74,199.80
  4. Step 4: Simplify right side
    273,891.80x = 30,481,671,098.94
  5. Step 5: Solve for x
    x = 30,481,671,098.94/273,891.80
  6. Step 6: Final answer
    x = 111,290.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.